<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    .box {
      width: 360px;
      height: 360px;
      margin: 50px auto;
      transition: transform 10s;

    }

    .box div {
      height: 150px;
      width: 150px;
      background-color: #9BE22D;
      float: left;
      border: 1px solid #000;
      margin: 14px;
    }

    .box:hover {
      transform: rotate(3600deg);
    }

    .div1 {
      border-radius: 0px 150px 0px 150px;
    }

    .div2 {
      border-radius: 150px 0px 150px 0px;
    }

    .div3 {
      border-radius: 150px 0px 150px 0px;
    }

    .div4 {
      border-radius: 0px 150px 0px 150px;
    }
  </style>
</head>

<body>
  <div class="box">
    <div class="div1"></div>
    <div class="div2"></div>
    <div class="div3"></div>
    <div class="div4"></div>
  </div>
</body>

</html>